Commit @60610fdd779a5e5e22d9e6f47275f3eceed57ed1

doortts 2016-12-17

etc: Make is-alive-bot.sh more general purpose

@60610fdd779a5e5e22d9e6f47275f3eceed57ed1

4686c61

60610fd

is-alive-bot.sh

--- is-alive-bot.sh

+++ is-alive-bot.sh


 # USER_CHAT_ID=123456789
 USER_CHAT_ID=""
 
-# Yona Server
-# YONA_SERVER="http://my-yona-server.com"
-YONA_SERVER="http://127.0.0.1:9000"
+# TARGET_SERVER="http://my-yona-server.com"
+TARGET_SERVER="http://127.0.0.1:9000"
+
+CHECK_URL="$TARGET_SERVER/-_-api/v1/hello"
+
+EXPECTED_STATUS_CODE=200
 
 # Polling Time (sec)
 POLLING_TIME=60
+
+# Messages
+messageOnDown="Yona is unavaliable!"
+messageOnRevive="Yona comeback!"
+
 
 # Configurations end here...
 

         echo ""
         echo "ex>"
         echo "sh is-alive-bot.sh 328394984:AAFhL69afasfqjtUtIeRSzIagVYw7H3zF4"
+        echo ""
+        echo "See: https://core.telegram.org/bots#3-how-do-i-create-a-bot"
         exit 1
     fi
 else

         then
         echo "---------------------------------------------------"
         echo "Find chat id of user or group with your own eyes.. "
+        echo ""
+        echo "..chat\":{ \"id\": 621884 ...  <= user or group id!"
         echo "---------------------------------------------------"
         echo ""
         curl -sL https://api.telegram.org/bot$API_TOKEN/getUpdates

 
 ### preparing for message and server status check
 
-message=""
-messageOnDown="Yona is unavaliable!"
-messageOnRevive="Yona comeback!"
-
 sendMessageToTelegram() {
   curl -s \
     -X POST \
     https://api.telegram.org/bot$API_TOKEN/sendMessage \
-    -d text="$message" \
+    -d text="$1" \
     -d chat_id=$USER_CHAT_ID > /dev/null
 }
 

 echo "Monitoring started... $(date +%Y-%m-%d" "%H:%M:%S)"
 echo ""
 
-message="Monitoring started... - $YONA_SERVER"
-sendMessageToTelegram
+sendMessageToTelegram "Monitoring started... - $TARGET_SERVER"
 
 while true
 do
     NOW=$(date +%Y-%m-%d" "%H:%M:%S)
-    curl -sL -H "Accept: application/json" $YONA_SERVER/-_-api/v1/hello | grep "\"ok\":true" > /dev/null
-    if [ $? != 0 ]
+    response=$(curl -I $CHECK_URL 2> /dev/null | head -n 1 | cut -d$' ' -f2)
+    if [ -z $response ] || [ $response != $EXPECTED_STATUS_CODE ]
         then
             if [ $isDown == false ] 
                 then
                     echo "Sending message - $messageOnDown - $NOW" 
                     isDown=true
-                    message="$messageOnDown - $YONA_SERVER"
-                    sendMessageToTelegram
+                    sendMessageToTelegram "$messageOnDown $response - $TARGET_SERVER"
             fi
         else
             if [ $isDown == true ] 
                 then
                 echo "Sending message - $messageOnRevive - $NOW" 
                 isDown=false
-                message="$messageOnRevive - $YONA_SERVER"
-                sendMessageToTelegram
+                sendMessageToTelegram "$messageOnRevive - $TARGET_SERVER"
             fi
     fi
     sleep $POLLING_TIME

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...	...	@@ -13,12 +13,20 @@
13	13	# USER_CHAT_ID=123456789
14	14	USER_CHAT_ID=""
15	15
16		-# Yona Server
17		-# YONA_SERVER="http://my-yona-server.com"
18		-YONA_SERVER="http://127.0.0.1:9000"
	16	+# TARGET_SERVER="http://my-yona-server.com"
	17	+TARGET_SERVER="http://127.0.0.1:9000"
	18	+
	19	+CHECK_URL="$TARGET_SERVER/-_-api/v1/hello"
	20	+
	21	+EXPECTED_STATUS_CODE=200
19	22
20	23	# Polling Time (sec)
21	24	POLLING_TIME=60
	25	+
	26	+# Messages
	27	+messageOnDown="Yona is unavaliable!"
	28	+messageOnRevive="Yona comeback!"
	29	+
22	30
23	31	# Configurations end here...
24	32
...	...	@@ -32,6 +40,8 @@
32	40	echo ""
33	41	echo "ex>"
34	42	echo "sh is-alive-bot.sh 328394984:AAFhL69afasfqjtUtIeRSzIagVYw7H3zF4"
	43	+ echo ""
	44	+ echo "See: https://core.telegram.org/bots#3-how-do-i-create-a-bot"
35	45	exit 1
36	46	fi
37	47	else
...	...	@@ -44,6 +54,8 @@
44	54	then
45	55	echo "---------------------------------------------------"
46	56	echo "Find chat id of user or group with your own eyes.. "
	57	+ echo ""
	58	+ echo "..chat\":{ \"id\": 621884 ... <= user or group id!"
47	59	echo "---------------------------------------------------"
48	60	echo ""
49	61	curl -sL https://api.telegram.org/bot$API_TOKEN/getUpdates
...	...	@@ -63,15 +75,11 @@
63	75
64	76	### preparing for message and server status check
65	77
66		-message=""
67		-messageOnDown="Yona is unavaliable!"
68		-messageOnRevive="Yona comeback!"
69		-
70	78	sendMessageToTelegram() {
71	79	curl -s \
72	80	-X POST \
73	81	https://api.telegram.org/bot$API_TOKEN/sendMessage \
74		- -d text="$message" \
	82	+ -d text="$1" \
75	83	-d chat_id=$USER_CHAT_ID > /dev/null
76	84	}
77	85
...	...	@@ -82,29 +90,26 @@
82	90	echo "Monitoring started... $(date +%Y-%m-%d" "%H:%M:%S)"
83	91	echo ""
84	92
85		-message="Monitoring started... - $YONA_SERVER"
86		-sendMessageToTelegram
	93	+sendMessageToTelegram "Monitoring started... - $TARGET_SERVER"
87	94
88	95	while true
89	96	do
90	97	NOW=$(date +%Y-%m-%d" "%H:%M:%S)
91		- curl -sL -H "Accept: application/json" $YONA_SERVER/-_-api/v1/hello \| grep "\"ok\":true" > /dev/null
92		- if [ $? != 0 ]
	98	+ response=$(curl -I $CHECK_URL 2> /dev/null \| head -n 1 \| cut -d$' ' -f2)
	99	+ if [ -z $response ] \|\| [ $response != $EXPECTED_STATUS_CODE ]
93	100	then
94	101	if [ $isDown == false ]
95	102	then
96	103	echo "Sending message - $messageOnDown - $NOW"
97	104	isDown=true
98		- message="$messageOnDown - $YONA_SERVER"
99		- sendMessageToTelegram
	105	+ sendMessageToTelegram "$messageOnDown $response - $TARGET_SERVER"
100	106	fi
101	107	else
102	108	if [ $isDown == true ]
103	109	then
104	110	echo "Sending message - $messageOnRevive - $NOW"
105	111	isDown=false
106		- message="$messageOnRevive - $YONA_SERVER"
107		- sendMessageToTelegram
	112	+ sendMessageToTelegram "$messageOnRevive - $TARGET_SERVER"
108	113	fi
109	114	fi
110	115	sleep $POLLING_TIME

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